Seal-lock



2 Sheets-Sheet 14 B. H. TYSON.

SEAL LOOK.

(No Model.)

Patented Feb. 25, 1896.

Inventor.

Witnesses:

Attorney] ,FNOTWLHMQWASHINGTUM DI 2 Sheets-Sheet 2.

B. H. TY

SEAL LO N0. 555,412 Patented Feb. 25, 1 896.

UNITED STATES ATENT OFFICE.

BENJAMIN II. TYSON, OF RALEIGH, NORTH CAROLINA.

SEAL-LOCK.

SPECIFICATION forming part of Letters Patent No. 555,412, dated February25, 1896. Application filed April 27, 1895. Serial No. 647,386. (Nomodel.)

To aZZ whom, it may concern.-

Be it known that I, BENJAMIN H. TYsoN, of Raleigh, in the county of Wakeand State of North Carolina, have invented certain new and usefulImprovements in Seal-Locks; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to make and useit,reference being had to the accompanying drawings, which form part ofthis specification.

My invention relates to improvements in seal-locks, and it is especiallyadapted for use in connection with freight-cars, which will be fullydescribed hereinafter, and particularly pointed out in the claims.

The object of my invention is to provide a simple and cheap seal whichis absolutely safe against being picked or tampered with without leavingsome outward evidence that it has been opened or tampered with.

Figure 1 is a perspective view of my lock complete. Fig. 2 is a detachedview of the hasp. Fig. 3 is a detached view of the eyebolt through whichthe seal portion of the hasp passes. Fig. 4 is a similar view of theeyebolt for holding the opposite end of the hasp. Fig. 5 is a viewshowing the interior locking -shoulders of the hasp projection. Fig. 6is a detached view of the seal. Fig. 7 is an edge view of the seal. Fig.8 is a perspective view of the same. Fig. 9 is a perspective view of theseal, showing a modified form thereof.

Referring now to the drawings, A indi cates a hasp having a verticalportion B, and at one end a vertical oblong opening 0 through which theeyebolt D passes. This eyeboltD consists of a hook having a base portionE upon the inwardly-extending portion F,which is screw-threaded toreceive a nut G. The opposite end of the hook enters into the door aslight distance, and the hook being made of cast-iron it cannot beremoved by bending the same and therefore necessitates its breaking soas to indicate that it has been tampered with.

The opposite end of the haspAis provided with an outwardly-extending lipI at its upper end from which extends downward a bolt or extensionportion J, preferably round in cross -section. This portion J isprovided with a transverse slit K through which the seal passes. Insideof this portion J are the shoulders L formed by recesses with which thelips of the seal (M shown in Fig. 6) engage, as will be readilyunderstood. This seal has the reduced portion N, which is provided withthe said lips, so that the seal can only be forced within the portion Jto the proper distance.

The eyebolt 0, through which the portion J of the hasp passes, consistsof an outward or horizontal portion provided with a perforation P forthe said projection J of the hasp. The arm Q has an enlargement a,provided at its outer edge with the flanges R, forming aninwardly-extending recess below and inside of the perforation P, saidrecess having preferably an open lower end, as shown. The object of thisopening formed by the lips or flanges is to prevent the seal from beingtampered with from the under side. This eyebolt is provided with aninwardly-extending screw-threaded arm Q receiving a nut S, so that itcannot be removed from the door, as will be readily understood.

In operation the seal has its reduced portion passed into the slit K ofthe projection J of the hasp, and the spring-lip of the seal immediatelycatch the shoulders or projections therein so that it cannot be removed.Then it is desired to open the car it is only necessary to work the sealback and forth, when it will break oif at the shoulder or reducedportion, permitting the car to be opened. When another seal is placedinto position the placing thereof removes the broken part of the sealwhich is within the projection and forces it between the flangsheretofore described.

From the above description it will be seen that I have produced a strongseal which it is impossible to tamper with without some outward evidencewhich would be discovered by the inspector.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. A hasp having at its outer end a downwardly projecting pin adapted topass through an eyebolt or staple, said pin having a slit entirelythrough it which extends inward and transverse the hasp to preventaccess to its inner end, the slit having one or An eyebolt forseal-locks having a horizontal ontwardly-proj ectin g portion providedwith a vertical opening and parallel flanges depending beneath saidhorizontal portion for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

B. H. TYSON. \Vitnesses BEVERLY B. BowED, S. P. BAILEY.

